Denver to Seattle

DENSEA

Fly from Denver to Seattle starting at USD 91 with Frontier Airlines.Best fare available on Oct 13, 2026.Limited seats. Better plans. Book before it's gone.

Denver to Seattle cheapest flights this week

29 Sept
Frontier Airlines
13:07DEN
16:08SEA
DirectUSD 142VIEW DEAL
30 Sept
Frontier Airlines
13:07DEN
16:08SEA
DirectUSD 167VIEW DEAL
1 Oct
Frontier Airlines
13:07DEN
16:08SEA
DirectUSD 166VIEW DEAL
2 Oct
Frontier Airlines
13:07DEN
16:08SEA
DirectUSD 166VIEW DEAL
4 Oct
Frontier Airlines
13:07DEN
16:08SEA
DirectUSD 167VIEW DEAL
9 Oct
Frontier Airlines
13:07DEN
16:12SEA
DirectUSD 180VIEW DEAL
10 Oct
Frontier Airlines
18:42DEN
09:58SEA
1 StopUSD 156VIEW DEAL
11 Oct
Frontier Airlines
13:07DEN
16:12SEA
DirectUSD 142VIEW DEAL
12 Oct
Frontier Airlines
13:07DEN
16:12SEA
DirectUSD 145VIEW DEAL
13 Oct
Frontier Airlines
13:07DEN
16:12SEA
DirectUSD 91VIEW DEAL

Denver to Seattle monthly flight fare trend

Sep
from USD 142
Oct
from USD 91
Nov
from USD 143
Dec
from USD 107
Jan
from USD 159
Feb
No flights

Airport Details

Origin

Denver

Denver International Airport (DEN)

Denver, DEN
Zone

Denver

Elev

5431 ft

Destination

Seattle

Seattle–Tacoma International Airport (SEA)

Seattle, SEA
Zone

Los Angeles

Elev

433 ft

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